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Air handling system combined with transcritical cycle and two-stage solution dehumidification system

An air handling system, solution dehumidification technology, applied in air conditioning systems, space heating and ventilation, heating methods, etc., can solve problems such as flexibility and adaptability constraints

Active Publication Date: 2019-03-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two-stage dehumidification of the system is in series, and the same dehumidifier must be used, which is subject to certain constraints in flexibility and adaptability.

Method used

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  • Air handling system combined with transcritical cycle and two-stage solution dehumidification system
  • Air handling system combined with transcritical cycle and two-stage solution dehumidification system
  • Air handling system combined with transcritical cycle and two-stage solution dehumidification system

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Embodiment 1

[0055] Such as figure 1 As shown, the air treatment system combined with the transcritical cycle and the two-stage solution dehumidification system in this embodiment includes: a transcritical compression subsystem and a two-stage solution dehumidification subsystem, wherein the two-stage solution dehumidification subsystem includes a first-stage solution dehumidification unit and Secondary solution dehumidification unit;

[0056] The transcritical compression subsystem includes:

[0057] The outlet of compressor 1 is connected to the inlet of the refrigerant channel of the first heater 2, the outlet of the refrigerant channel of the first heater 2 is connected to the inlet of the refrigerant channel of the second heater 3, and the outlet of the refrigerant channel of the second heater 3 is connected to the air cooler 4 The inlet of the refrigerant channel is connected, the outlet of the refrigerant channel of the air cooler 4 is connected to the inlet of the first channel of...

Embodiment 2

[0079] Such as figure 2 As shown, the air treatment system in this embodiment combined with a transcritical cycle and a two-stage solution dehumidification system has the same structure as the treatment system in Embodiment 1 except that the dehumidification process is isothermal dehumidification. This embodiment has a first-stage cooling coil 23 and the secondary cooling coil 24 are respectively placed in the packing of the primary dehumidifier 11 and the secondary dehumidifier 17; the primary cooling coil 23 and the secondary cooling coil 24 take away the heat generated by the dehumidification process in time, so that The temperature of the desiccant solution remains constant, which improves the dehumidification capacity; at the same time, the heat transfer temperature difference between the primary solution heat exchanger 8 and the secondary solution heat exchanger 14 increases, and the low-temperature dilute solution can better cool the high-temperature concentrated soluti...

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Abstract

The invention discloses a trans-critical cycle and two-stage solution dehumidification system combined air treating system. The air treating system comprises a trans-critical compression subsystem and a two-stage solution dehumidification subsystem, the dehumidification process is adiabatic dehumidification, an air cooling unit of the trans-critical compression subsystem is divided into a first-stage heater, a second-stage heater and an air cooler which achieve heat release and cooling step by step in the working medium flowing direction, and the two-stage solution dehumidification subsystem comprises a first-stage solution dehumidification unit and a second-stage solution dehumidification unit. The invention further discloses a trans-critical cycle and two-stage solution dehumidification system combined air treating system of which the dehumidification process is isothermal dehumidification. By means of reasonable energy coupling of trans-critical cycle and the solution dehumidification system, high-pressure side exhausted heat of the trans-critical cycle is utilized in a staged mode, dehumidification performance of the system is improved, and refrigerating capacity of an evaporation unit is further utilized for cooling dehumidified air; and meanwhile dehumidifying and cooling of air are achieved, and overall performance of the system is improved.

Description

technical field [0001] The invention relates to the fields of solution dehumidification and energy utilization, in particular to an air treatment system combined with a transcritical cycle and a two-stage solution dehumidification system. Background technique [0002] At present, cooling and dehumidification methods are mostly used in household air conditioners to control indoor humidity. There are many problems in cooling and dehumidification. The phase change of water vapor during the condensation process will consume a lot of cooling capacity, and the condensed water generated during the condensation process will also cause bacteria to grow in the coil. , affecting air quality, etc. As another important humidity control method, solution dehumidification refers to the method of using some hygroscopic solutions to absorb moisture in the air to dehumidify the air. It can use low-grade heat sources and is an energy-saving green dehumidification method. [0003] For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F3/14
CPCF24F3/1417F24F2003/144F24F2003/1458
Inventor 何一坚陈香玉黄国斌
Owner ZHEJIANG UNIV